Build a Website

We need a system like Bookmyshow for Restaurant table booking. Just like on bookmyshow a customer can see seat availability in real time and book it we need similar kind of system. There should be a Business login where restaurant owners can mark the availability of tables from their side and a Customer login where customer can look at any restaurant and see which table are available for a particular date and time. This needs to be in real time, when customer books a table, it gets marked on the system so restaurant owner knows that he should not give it to someone else and if someone walks into a restaurant and takes a table, restaurant owner should be able to mark it unavailable on website so that it doesn't get booked online. The complete interface will be like bookmyshow and there will a page for every restaurant with its pictures and menu etc. We will start with around 10 restaurants of Delhi NCR and this number will go up as we expand so we need a backend where we can add new restaurants without or with minimal help from developers. Please revert with the estimated cost and time required for this project. If the quote and timelines suit us, we will arrange a face to face meeting to discuss things in detail. Thank You!